heat capacity
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Mia and Devon are having a summer party. They need to make two sizes of ice. The large blocks of ice will be put in a cooler to keep cans of soda cold. The small ice cubes will keep the sodas in the glasses cold. They wondered how the temperature at which water freezes is affected by the size. Which statement below is true?
A. Small ice cubes freeze at a lower temperature than large blocks of ice.
B. Small ice cubes freeze at a higher temperature than large blocks of ice.
C. Small ice cubes and large blocks of ice freeze at the same temperature.
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ReviewReviewDensity AnomalyIce floats DMV
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Heat CapacityHeat Capacity How much heat a
substance can “hold” Water has a high heat
capacity Water can “hold” a lot of
heat
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Heat CapacityHeat Capacity It also takes a lot of energy to heat water up
Or to cool it down
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Change of StateChange of State Water exists in the liquid
state in a very wide range of temperatures
Form 0oC to 100oC In liquid form all over the
world
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Change of StateChange of State Water has extreme
boiling/freezing points Boiling point: 100o C, 212o FFreezing point:0o C, 32o F
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Sensible HeatSensible Heat Heat is applied, the
temp. increases but The state of matter
stays the same “angled or curved” parts
of the graph
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Sensible Heat
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Latent HeatLatent Heat Heat applied, the temp.
stays the same but The state of matter
changes “flat spots” on the graph
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Latent Heat
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Water’s 4 Special Water’s 4 Special Properties:Properties: 1. High Surface Tension
2. The Density Anomaly
3. High Heat Capacity
4. High Boiling Point/High Freezing Point